Second Law of Thermodynamics and Entropy
A partition in a thermally insulated container separates hot water from cold water. The partition is removed, allowing the water to mix and reach thermal equilibrium. A student claims that the water will then spontaneously unmix, returning to its initial separated hot and cold states. Which statement correctly evaluates the student’s claim?
A
The claim violates the second law as entropy would decrease
B
The claim follows conservation of energy principles
C
The claim is valid for reversible processes only
D
The claim is possible if the system is perfectly isolated
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